[Circulation of the influenza virus on poultry-raising farms]

The results of examinations for immunity to influenza in chickens and the personnel handling them at the permanently observed farm are presented. Antibodies mainly to the same antigenic variants of human influenza viruses were found in chicken and human blood sera. Alongside with antihemagglutinins to influenza A (H3N2) virus strains, chicken in 1983-1984 were found to have antibodies to influenza B virus epidemically important in those years. Thus, in poultry farms human influenza viruses are introduced into poultry populations. The strains circulating among fowls may probably be potentially dangerous for man.